A scientific approach to research in which a researcher controls, manipulates, and then measures one or more variables to ascertain how manipulating the variables affects the subjects is called ______________ research.

Which of the following phrases from the documentation best supports social history?

a. His wife has a history of breast cancer, although per patient, she is now cancer free, which has relieved his personal stress; however, he is increasingly anxious about the number of hours he spends traveling for work. b. Patient denies any gastrointestinal problems in his life, although he remembers having heartburn. c. His father died of colon cancer d. Patient states his job has become increasingly stressful at Comico Oil Company, and he has been working a lot of weekends.

Which of the following physical exam findings are associated with obstructive sleep apnea? 1. Large tonsils 2. Microcephaly 3. Macroglossia 4. Deviated nasal septum

a. 1 and 3 only b. 1, 2, and 3 only c. 3 and 4 only d. 2, 3, and 4 only